摘要:
A method for optimizing a design for a device is disclosed. Such an optimization is performed with respect to a predetermined metric, e.g. device speed, area, power consumption or yield. In one aspect, the method comprises obtaining a design for a device. The design comprises design components. The method also comprises determining from the design components at least one group of first design components that has a higher sensitivity to the predetermined metric than second design components. The first design components may be on the critical path in the design. The method further comprises tuning the first design components and the technology for manufacturing the first design components thus reducing the variability of the first design components and obtaining an optimized design with respect to the predetermined metric.
摘要:
Methods, apparatus and software products are described for design-time data-assignment techniques for hierarchical memories, e.g., multi-banked memories in an essentially digital system as well as methods, apparatus and software products for run-time memory management techniques of such a system. Memory assignment techniques are described for assigning data to a hierarchical memory particularly for multi-tasked applications where data of dynamically created/deleted tasks is allocated at run-time. The energy consumption of hierarchical memories such as multi-banked memories depends largely on how data is assigned to the memory banks. Methods, apparatus and software products are described for design-time data-assignment techniques for hierarchical memories, e.g., multi-banked memories in an essentially digital system which improve a cost function such as energy consumption.
摘要:
A submarine vehicle for collecting and raising materials resting on the sea bed at great depths, of the type comprising a load-bearing structure, collecting elements for the materials, storage silos for storing the materials collected and/or the ballast material, transfer means between said collecting elements and said silos, and main propellers for advancing the vehicle on the sea bed, said vehicle being characterized in that said load-bearing structure is made of a buoyancy material, said structure being in the form of a ring having a longitudinal plane of symmetry and defining the stem, stern and sides of said vehicle, and defining between them a free central space, the outer surface of said structure forming the hull of said vehicle, said storage silos being arranged in the free central space and fixed to said load-bearing structure, said collecting elements being arranged in front of and below said stem, said main propellers also being fixed to the lower surface of said load-bearing structure.
摘要:
Vehicle able to move by adhesion on a random surface, with a central body defining a pivoting axis which remains substantially perpendicular to a surface and which has two groups of central supports which adhere to the surface; first and second carriages, each provided with two groups of adhesive end supports; first and second members for the guidance in rectilinear translation and without rotation of the first and second carriages in accordance with two directions which remain substantially orthogonal to the pivoting axis. The first and second carriages are displaceable along the guidance members; the first and second guidance members are pivotal about the pivot axis and the groups of central supports are rotatable about the pivot axis.
摘要:
An apparatus for the continuous thermal treatment of a product within an atmosphere made up of steam (saturated or superheated) of pure water or of a mixture of air and water vapor is disclosed. The product moves through an enclosed or confined space for its thermal treatment by the steam. The space is provided with entry and exit air-locks for the conveyance of the product into the space and for its removal. There are also means for guiding the product through the air-locks and the space. Additional means is provided to encourage thermal treatment and hence the space is provided with convection, radiation or conduction means to bring heat to the product. A first condensor receives vapor or humid air which is preferably extracted from the enclosed space via the adjacent air locks; it provides heat recovery of the purged vapor from the space. A second condensor is placed within the enclosed space and communicates with the high pressure discharge port of a compressor. The compressor has its low entry port communicating to an evaporator of the first condensor. It is the second condensor which supplies to the enclosed space heat that is derived from high pressure steam, at the output of the compressor.
摘要:
The container consists of a shielded body having an internal cavity and of a capsule which can be inserted into the cavity and is capable of sliding motion along the axis of this latter. The front face of the capsule is sealed by means of a removable door and the rear face is attached to an operating rod. The cavity is sealed beyond the front face of the capsule by means of a shielded element for positioning a cover opposite to the removable door of the capsule. The cover cooperates with means for permitting leak-tight coupling or uncoupling of the cover and the capsule by displacing these latter in relative motion.
摘要:
The control arm for a remotely operated power manipulator comprises a system for carrying out a number of movements and position detectors for each movement. The number of possible movements of the arm is equal to the number of possible movements of the manipulator and motion-control operations can be interrupted at will. Means are provided on at least one portion of the control arm for interlockiing it with respect to another portion of the arm independently of the other movements as long as the position of the manipulator and of the arm have not been brought into complete concordance and for releasing the interlock when complete concordance is achieved.
摘要:
A method for optimizing a design for a device is disclosed. Such an optimization is performed with respect to a predetermined metric, e.g. device speed, area, power consumption or yield. In one aspect, the method comprises obtaining a design for a device. The design comprises design components. The method also comprises determining from the design components at least one group of first design components that has a higher sensitivity to the predetermined metric than second design components. The first design components may be on the critical path in the design. The method further comprises tuning the first design components and the technology for manufacturing the first design components thus reducing the variability of the first design components and obtaining an optimized design with respect to the predetermined metric.
摘要:
A measurement system for determining the capacitance of a device-under-test in an integrated circuit is disclosed. In one aspect, the measurement system has a reference circuit and a test circuit. Each circuit has first and second diodes that are switched in accordance with a clock cycle to charge and discharge the associated circuit. A method takes average current measurements for each circuit at one voltage level and processes them so that the capacitance of a device-under-test connected to the test circuit can accurately and reliably be determined. Two voltage levels may be used and adjustments are made for voltage threshold of the diodes and also their resistance.
摘要:
A method and device for testing through-substrate vias (TSVs) in a 3D chip stack are disclosed. In one aspect, the 3D chip stack includes at least a first die having a first electrical circuit and a second die having a second electrical circuit. The first die further includes at least one first TSV for providing electrical connection between the first electrical circuit and the second electrical circuit. The first die further includes test circuitry and at least one second TSV electrically connected between the first TSV and the test circuitry. The electrical connection between the first TSV and the second TSV is made outside the second die. In one aspect, this allows testing the first TSV in the first die even if the second die is not provided with dedicated test circuitry.